70479691 has 4 divisors (see below), whose sum is σ = 70545384. Its totient is φ = 70414000.

The previous prime is 70479679. The next prime is 70479701. The reversal of 70479691 is 19697407.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 70479691 - 2¹¹ = 70477643 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70479601) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31210 + ... + 33391.

It is an arithmetic number, because the mean of its divisors is an integer number (17636346).

Almost surely, 2^70479691 is an apocalyptic number.

70479691 is a deficient number, since it is larger than the sum of its proper divisors (65693).

70479691 is a wasteful number, since it uses less digits than its factorization.

70479691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65692.

The product of its (nonzero) digits is 95256, while the sum is 43.

The square root of 70479691 is about 8395.2183414132. The cubic root of 70479691 is about 413.0677893912.

The spelling of 70479691 in words is "seventy million, four hundred seventy-nine thousand, six hundred ninety-one".